Ms Madsen said the union also wanted the Government to address workload issues being faced by teachers.

"The irony is that our Government is saying they want to deliver a world-class education system," she said.

"That's what teachers want to deliver as well, and that's what they're trying to deliver, in paid time and many hours of unpaid time, but it is just not possible."

Ms Madsen would not rule out further stop-work action this year.

"Well, that will depend on the Government's response," she said.

Don't bring the children into it: Ferguson

Tasmanian Government minister Michael Ferguson did not confirm if any schools would need to closed.

Mr Ferguson said the Education Department would be working with principals to minimise disruption caused by the strike action.

"It's not hurting the Government, it's hurting the families who send their children to these schools, and that's why I think it's really uncalled for," Mr Ferguson said.

"Of course, we understand people want to have their negotiations or even their debates but don't bring the children into it."

Mr Ferguson said the Government's wages policy was fair.

Other public sector unions will not strike on the same day as teachers and school staff, but members of the Community and Public Sector Union, Health and Community Services Union, United Firefighters Union and Australian Workers Union are expected to hold their own stop-work action in December.